Gata played 20.Qg4!, after which the threat of Nf6+ is very hard to meet. Meanwhile after the seemingly easy response Rg6, Gata has 21.Nf4! when Rg6 22. Nxd5 Rg6 23. g4 led to unsolvable problems with the misplaced rook on g6. (Hide Solution)

Here is the full game:

Karjakin and Shirov drew again so tomorrow, Tuesday, Dec.11, they go to tiebreak to see who will play Kamsky in the final.

Wednesday, Dec.12 is a free day and then the four game match (Dec 13-16) begins on Thursday, followed by a day for tiebreak and closing ceremony (Dec.17.) Whatever Gata has been doing has worked so far- Good luck in the final!